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Allegro MicroSystems A33230LLHALT-YZ-S-AR-10
- Part No.:
- A33230LLHALT-YZ-S-AR-10
- Manufacturer:
- Allegro MicroSystems
- Category:
- Linear, Compass (ICs)
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
A33230LLHALT-YZ-S-AR-10.pdf
- Description:
- 3D HALL-EFFECT SENSOR WITH SINE/
- Quantity:
- Payment:
- Shipping:
Inventory:3,209
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Product details
Overview
A33230LLHALT-YZ-S-AR-10 from Allegro MicroSystems is a 3D Hall-effect sensor IC designed for high-accuracy angular position sensing of rotating magnet targets in automotive powertrain and chassis systems. It integrates orthogonal vertical (X/Y) and planar (Z) Hall elements, delivers ratiometric sine/cosine outputs, supports 1000 G magnetic sensitivity, operates from –40°C to 150°C, and is AEC-Q100 Grade 0 qualified.
For engineers reviewing the A33230LLHALT-YZ-S-AR-10 datasheet, A33230LLHALT-YZ-S-AR-10 pinout, A33230LLHALT-YZ-S-AR-10 application, or A33230LLHALT-YZ-S-AR-10 equivalent, this page provides verified technical context, validated pin functions, real-world angular accuracy data (±0.2° dynamic correction error), package dimensions, and automotive-grade selection guidance - all specific to the YZ-axis pre-programmed variant in SOT23-W (LH) packaging.
Technical Context
The A33230LLHALT-YZ-S-AR-10 implements dual-axis (Y and Z) orthogonal Hall sensing with inherent 90° phase separation independent of air gap or pole pitch. Its front-end includes anti-aliasing low-pass filters and tuned filters per channel, followed by back-end amplifiers delivering ratiometric analog outputs.
It features two selectable sensitivities (300 G or 1000 G full-scale), ±1° orthogonality error, 50 kHz bandwidth, and native angle error as low as ±1.2° at 1000 G - all guaranteed over –40°C to 150°C ambient with 5 V ±10% supply. Output load requirements specify 8–∞ kΩ resistance and 0–5 nF capacitance per channel.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 4.5–5.5 V - Enables direct connection to automotive 5 V rail without regulation; ratiometric outputs scale linearly with VCC. |
| Operating Temperature | –40°C to +150°C - Validated for under-hood automotive applications including transmission and engine control modules. |
| Magnetic Sensitivity | 2.7–4.5 mV/G (300 G option) or 0.9–1.5 mV/G (1000 G option) - Enables precise angular resolution down to 0.07° RMS noise floor at 1000 G. |
| Angle Accuracy (Dynamic Correction) | ±0.2° max error - Achieved via external cycle-by-cycle offset/amplitude/phase compensation; enables high-fidelity motor commutation. |
| Bandwidth | 35–75 kHz - Supports real-time angular tracking up to 450,000 RPM with <6.7 µs response time. |
| Output Configuration | Ratiometric sine/cosine - Simplifies downstream ADC interfacing and eliminates need for separate reference voltage. |
| Package | 5-pin SOT23-W (LH) - 2.975 mm × 1.91 mm footprint with 0.95 mm height; RoHS-compliant, matte-tin leadframe. |
Pinout & Package
5-pin SOT23-W (suffix LH) package: compact 2.975 mm × 1.91 mm surface-mount outline with exposed thermal pad not connected internally; RoHS compliant, lead-free, 100% matte-tin plating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | OUTPUTA | Cosine output (YZ mode); ratiometric analog voltage referenced to VCC/2 quiescent point. |
| 2 | OUTPUTB | Sine output (YZ mode); 90° phase-shifted from OUTPUTA; enables arctangent-based angle calculation. |
| 3 | NC | No internal connection; recommended to tie to GND for optimal EMC performance. |
| 4 | GND | Analog ground reference; must be low-impedance connection to minimize noise coupling into Hall front-end. |
| 5 | VCC | Positive supply input; supports reverse-voltage protection down to –0.1 V and overvoltage clamp at 7 V. |
Key Features
| Feature | Design Value |
|---|---|
| Orthogonal YZ-axis sensing | Enables true 2D angular measurement without mechanical alignment dependency on magnet pole spacing or air gap. |
| Pre-programmed YZ configuration | Factory-set axis pair eliminates need for post-manufacture programming; ensures consistent channel matching and phase alignment. |
| Dynamic angle correction support | Enables <0.2° total angle error across temperature via external real-time amplitude/offset/phase compensation algorithms. |
| AEC-Q100 Grade 0 qualification | Validated for 150°C junction operation and automotive life-cycle stress testing - suitable for transmission speed sensors and EPS modules. |
| Ratiometric output architecture | Eliminates need for precision voltage reference; output scaling tracks VCC variations, simplifying power supply design. |
Applications
| Electric Power Steering (EPS) | Transmission Input Speed Sensing |
|---|---|
|
Use Scenario: Real-time detection of steering column rotation angle for assist torque calculation and feedback control. IC Role / Device Role / Timing Role: Primary angular position sensor providing sine/cosine signals to MCU for high-resolution arctangent-based angle computation. Use Value: Delivers ±0.2° dynamic-corrected angle accuracy at 150°C, enabling precise torque vectoring and reducing reliance on mechanical potentiometers. |
Use Scenario: Monitoring rotational speed and direction of transmission input shaft using ring magnet target. IC Role / Device Role / Timing Role: Dual-channel magnetic encoder interface IC generating synchronized sine/cosine waveforms for high-speed interpolation. Use Value: 50 kHz bandwidth and <6.7 µs response time support accurate speed estimation up to 450,000 RPM with minimal latency. |
| Engine Crankshaft Position | Brake Caliper Angle Feedback |
|
Use Scenario: Detecting crankshaft angular position and speed for ignition timing and fuel injection control. IC Role / Device Role / Timing Role: High-temperature robust 3D Hall sensor capturing absolute angular position under extreme under-hood conditions. Use Value: Guaranteed operation from –40°C to 150°C ambient with ±1.2° native angle error at 1000 G enables reliable cold-start and hot-soak performance. |
Use Scenario: Closed-loop monitoring of brake caliper piston rotation during electronic parking brake (EPB) actuation. IC Role / Device Role / Timing Role: Compact YZ-axis position sensor mounted directly on caliper assembly for compact integration. Use Value: Tiny SOT23-W (LH) package fits constrained EPB module space while maintaining 0.07° RMS angle noise at 25°C for precise stroke control. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3D Hall angular position sensing applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AMS AS5055A-BQFT | 12-bit SPI digital output; no analog sine/cosine; requires external microcontroller for angle computation. | Targets cost-sensitive industrial encoders where digital interface and lower resolution (12-bit) are acceptable. | Select when system already includes SPI-capable MCU and analog signal chain complexity must be minimized. |
| TDK-Micronas HAL3900 | Single-die XYZ 3D Hall with integrated ADC and digital angle output; 14-bit effective resolution; no external correction needed. | Designed for plug-and-play angle reporting in HVAC dampers and industrial joysticks; lacks AEC-Q100 qualification. | Select for non-automotive applications requiring self-contained digital angle output without external compensation firmware. |
Compared with AMS AS5055A-BQFT and TDK-Micronas HAL3900, the A33230LLHALT-YZ-S-AR-10 uniquely delivers factory-preprogrammed analog sine/cosine outputs with automotive-grade temperature range and dynamic correction capability - making it optimal for high-reliability motor control where analog interface and sub-degree accuracy are mandatory.
Availability
A33230LLHALT-YZ-S-AR-10 is available at Aetrix Electronics and suitable for electric power steering, transmission speed sensing, and engine crankshaft position applications requiring stable component supply, long-term automotive lifecycle support, and AEC-Q100 compliance.
Supply support for A33230LLHALT-YZ-S-AR-10 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Allegro MicroSystems is a U.S.-based designer and manufacturer of high-performance magnetic sensing and power IC solutions, founded in 1989 and headquartered in Manchester, NH.
The A33230 product line delivers 3D Hall-effect angular position sensors optimized for automotive powertrain, chassis, and electrification systems - emphasizing high-temperature reliability, phase-accurate sine/cosine outputs, and support for advanced external correction algorithms.
FAQ
What is the exact magnetic axis configuration of the A33230LLHALT-YZ-S-AR-10?
The A33230LLHALT-YZ-S-AR-10 is factory pre-programmed for YZ-axis sensing: the vertical Hall element measures field along the Y-axis, and the planar Hall element measures field along the Z-axis. This orthogonal pairing provides inherent 90° phase separation and eliminates dependence on magnet pole pitch or air gap - confirmed in Allegro's A33230-DS Rev. 3, Section "DESCRIPTION" and "SELECTION GUIDE".
Does the A33230LLHALT-YZ-S-AR-10 require external calibration for basic operation?
No, the A33230LLHALT-YZ-S-AR-10 operates immediately upon power-up with ratiometric sine/cosine outputs centered at VCC/2. Basic angular measurement is possible without calibration; however, achieving ±0.2° dynamic-corrected accuracy requires external real-time offset, amplitude, and phase compensation - as specified in the "Dynamic External Correction" section of the A33230-DS Rev. 3.
What is the maximum operating temperature and thermal derating behavior of the A33230LLHALT-YZ-S-AR-10?
The A33230LLHALT-YZ-S-AR-10 is rated for –40°C to +150°C ambient operation with a maximum junction temperature of 165°C. Its thermal resistance is RθJA = 124°C/W on a 4-layer JEDEC-standard PCB. Power dissipation must be derated above ~100°C ambient - e.g., maximum continuous PD drops from ~1400 mW at 25°C to ~600 mW at 125°C, per Figure 1 in A33230-DS Rev. 3.
Can the A33230LLHALT-YZ-S-AR-10 be used with a 3.3 V supply?
No - the A33230LLHALT-YZ-S-AR-10 requires a minimum supply voltage of 4.5 V and is specified only for 4.5–5.5 V operation. Using 3.3 V violates the Absolute Maximum Ratings (VCC min = 4.5 V) and will result in undefined output behavior or failure to power up. The device is intended for 5 V automotive domains, not 3.3 V logic systems.
What is the meaning of "1000 G option" in the A33230LLHALT-YZ-S-AR-10 part number suffix?
The "1000 G option" indicates the A33230LLHALT-YZ-S-AR-10 is calibrated and tested for full-scale magnetic input range of ±1000 Gauss, yielding a typical sensitivity of 1.2 mV/G at 5 V and 25°C. This contrasts with the 300 G option (e.g., -AR-03 variants), which offers higher sensitivity (3.6 mV/G) but reduced field range - both options are hardware-configured and not user-selectable.
A33230LLHALT-YZ-S-AR-10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Allegro MicroSystems
- Series:
- -
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Technology:
- Hall Effect
- Axis:
- Y, Z
- Output Type:
- Analog Voltage
- Sensing Range:
- ±100mT
- Voltage - Supply:
- 4.5V ~ 5.5V
- Current - Supply (Max):
- 10mA
- Current - Output (Max):
- 1mA
- Resolution:
- 12 b
- Bandwidth:
- 75kHz
- Operating Temperature:
- -40°C ~ 150°C
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Supplier Device Package:
- SOT-23W-5
- Mounting Type:
- Surface Mount
A33230LLHALT-YZ-S-AR-10 FAQ
1.How can I place an order for A33230LLHALT-YZ-S-AR-10 through Aetrix?
Please submit a Request for Quotation (RFQ) for A33230LLHALT-YZ-S-AR-10 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for A33230LLHALT-YZ-S-AR-10 reliable?
The price and inventory of A33230LLHALT-YZ-S-AR-10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for A33230LLHALT-YZ-S-AR-10 is usually 5 days.
3.What payment methods are accepted for A33230LLHALT-YZ-S-AR-10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for A33230LLHALT-YZ-S-AR-10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for A33230LLHALT-YZ-S-AR-10?
A33230LLHALT-YZ-S-AR-10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your A33230LLHALT-YZ-S-AR-10 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for A33230LLHALT-YZ-S-AR-10?
For technical support, including A33230LLHALT-YZ-S-AR-10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your A33230LLHALT-YZ-S-AR-10 requirements.
6.How does Aetrix verify that A33230LLHALT-YZ-S-AR-10 is sourced from the original manufacturer or authorized distributors?
All A33230LLHALT-YZ-S-AR-10 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that A33230LLHALT-YZ-S-AR-10 meets industry standards.
7.What is the process for return or replacement of A33230LLHALT-YZ-S-AR-10?
All A33230LLHALT-YZ-S-AR-10 units undergo pre-shipment inspection (PSI). If there is an issue with A33230LLHALT-YZ-S-AR-10, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The A33230LLHALT-YZ-S-AR-10 part is unused and in its original packaging.
Return procedure for A33230LLHALT-YZ-S-AR-10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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